Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecae6d74a9229050…

MALICIOUS

PDF

41.1 KB Created: 2020-08-15 02:21:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 12a7cdfc3ae580a9a354c7e853e205c1 SHA-1: 0eb0eddf1f7949af4321d7bb6ec8b22579803b70 SHA-256: ecae6d74a9229050c12801b0f06adce85d6935ea9a542e1903385d5a8df84b4c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a machine learning classifier and heuristics indicate it contains a link farm and a redirector to malicious infrastructure. The document body contains a URL that points to a redirector, likely intended to lure users to malicious content. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=bus+racing+game+app In PDF document text
    • http://dakiwojeg.danceatstudioc.com/uploads/1/3/0/9/130969916/7b7d560e7cb00de.pdfIn PDF document text
    • http://files.wishdogandfriends.com/uploads/1/3/1/4/131411539/5547271.pdfIn PDF document text
    • http://files.roxysloclashnbrowbar.com/uploads/1/3/2/6/132695543/nagofulopesupevuris.pdfIn PDF document text
    • http://files.clearforkpublishing.com/uploads/1/3/1/8/131871659/sovaxitavoreduz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/xabazomifab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7612/4821/files/aschenputtel_sketch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8470/0055/files/14615678507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3455/7088/files/halloween_worksheets_grade_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/gate_2020_notification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5746/3971/files/94337407957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2502/2621/files/36243712855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/87113002345.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000628a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628A 5268 bytes
SHA-256: 048e72b369f9c13f99da586b4909ef677e220a29d26459e54741dcde939ed06a
font_01_sfnt_off0000745d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x745D 10264 bytes
SHA-256: 7b1c9837dc8f68f2b06b141cf4308a6bbc2cb272878d93a9c4f8ee0c8b8265d7

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